Commit Graph

117 Commits

Author SHA1 Message Date
Charles Keepax e57bb43c7e extcon: arizona: Wait for any running HPDETs to complete on jack removal
As the HPDET can't be aborted mid way through we should not allow any new
insertion to be processed until the previous HPDET has finished. It is very
unlikely but with low enough debounce settings you could start a new HPDET
before the old one has completed, which results in an erroneous reading.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2017-04-06 10:55:19 +09:00
Charles Keepax 6c467a106f extcon: arizona: Simplify micd_pol_gpio handling
Currently we handle both old style GPIO and new style GPIOD differently
simplify this slightly by converting the old style GPIO to a GPIOD and
just using that from then on.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2017-01-09 10:04:09 +09:00
Richard Fitzgerald efd95c71f4 extcon: arizona: Use SoC component pin control functions
The name of a codec pin can have an optional prefix string, which is
defined by the SoC machine driver. The snd_soc_dapm_x_pin functions
take the fully-specified name including the prefix and so the existing
code would fail to find the pin if the audio machine driver had added
a prefix.

Switch to using the snd_soc_component_x_pin equivalent functions that
take a specified SoC component and automatically add the name prefix to
the provided pin name.

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-12-01 20:18:44 +00:00
Chanwoo Choi 8670b45980 extcon: Use the extcon_set_state_sync() instead of deprecated functions
This patch alters the renamed extcon API to set the state of the external
connectors instead of deprecated extcon_set_cable_state_().

Because the patch[1] modifies the function name to maintain the function
naming pattern.
- extcon_set_cable_state_() -> extcon_set_state_sync()
- extcon_get_cable_state_() -> extcon_get_state()

[1] https://lkml.org/lkml/2016/8/4/729
- extcon: Rename the extcon_set/get_state() to maintain the function naming pattern

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Roger Quadros <rogerq@ti.com>
2016-09-13 11:26:26 +09:00
Chanwoo Choi 5475e63175 extcon: arizona: Remove the usage of extcon_update_state()
This patch remvoes the usage of extcon_update_state() because
the extcon_update_state() use directly the bit masking calculation
to change the state of external connector without the unique id of
external connector. It makes the code diffcult to read it.
So, this patch uses the extcon_set_cable_state_() instead.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
2016-08-08 10:58:35 +09:00
Charles Keepax c19dc203e6 extcon: arizona: Remove unneeded semi-colon
There is no need for a semi-colon at the end of a switch statement so
remove it.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2016-08-08 10:58:35 +09:00
Charles Keepax 03bf1adbd6 extcon: arizona: Use DAPM mutex helper functions
We should be using the helper functions to lock the DAPM mutex not
accessing it directly. There are no ill effects of this as the moment
but it is best practice, and the implementation could be changed in the
future.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2016-01-25 13:16:53 +09:00
Charles Keepax bb6da5d954 extcon: arizona: Add device bindings for the micd configurations
Add device bindings to support configuring the jack detection
configurations. Each configuration needs to specify the connection of
the mic det pins, which micbias should be used and the value of the
micd polarity GPIO required to activate that configuration.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-12-15 09:57:36 +09:00
Charles Keepax 7a7ef0f2a4 extcon: arizona: Update naming for micd-timeout DT to include units
Add time units of -ms (milliseconds) to wlf,micd-timeout.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-11-24 09:00:27 +09:00
Charles Keepax 832df9e8ec extcon: arizona: Update naming for second jack detection DT binding
Update the name for the second jack detection pin binding to be a little
less confusing.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-11-24 08:59:11 +09:00
Charles Keepax 35247c136a extcon: arizona: Add device binding for second jack detect pin on GPIO5
Some Arizona devices have the option to use the GPIO5 pin as a second
jack detection pin. This patch adds device bindings to specify to the
driver that it should use this pin. Note that the second jack detection
pin is hard wired in the chip so can only be enabled through the
binding, rather than a pin being specified.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-11-20 10:14:23 +09:00
Charles Keepax 3d7a872fa3 extcon: arizona: Add device binding for jack detect polarity inversion
By default the driver expects the jackdet pin to be pulled low when a
jack is inserted. This patch adds a device binding that allows the user
to specify that the jackdet pin will be pulled high when a jack is
inserted.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-11-20 10:14:23 +09:00
Charles Keepax 99374227cf extcon: arizona: Add device binding for the general purpose switch
The switch is generally used in conjunction with the MICDET clamp to
suppress pops and clicks associated with jack insertion. This patch adds
a binding that allows the user to select the mode of operation for this
switch.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-11-20 10:14:23 +09:00
Charles Keepax 2e87b7a8be extcon: arizona: Add device binding to enable ADC mode micdet
Add a simple boolean binding to turn on and off the use of ADC
microphone detection mode to determine 3/4 pole jack.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-11-20 10:14:23 +09:00
Chanwoo Choi 11eecf910b extcon: Modify the id and name of external connector
This patch modifies the id and name of external connector with the
additional prefix to clarify both attribute and meaning of external
connector as following:
- EXTCON_CHG_* mean the charger connector.
- EXTCON_JACK_* mean the jack connector.
- EXTCON_DISP_* mean the display port connector.

Following table show the new name of external connector with old name:
--------------------------------------------------
Old extcon name         | New extcon name        |
--------------------------------------------------
EXTCON_TA               | EXTCON_CHG_USB_DCP     |
EXTCON_CHARGE_DOWNSTREAM| EXTCON_CHG_USB_CDP     |
EXTCON_FAST_CHARGER     | EXTCON_CHG_USB_FAST    |
EXTCON_SLOW_CHARGER     | EXTCON_CHG_USB_SLOW    |
--------------------------------------------------
EXTCON_MICROPHONE       | EXTCON_JACK_MICROPHONE |
EXTCON_HEADPHONE        | EXTCON_JACK_HEADPHONE  |
EXTCON_LINE_IN          | EXTCON_JACK_LINE_IN    |
EXTCON_LINE_OUT         | EXTCON_JACK_LINE_OUT   |
EXTCON_VIDEO_IN         | EXTCON_JACK_VIDEO_IN   |
EXTCON_VIDEO_OUT        | EXTCON_JACK_VIDEO_OUT  |
EXTCON_SPDIF_IN         | EXTCON_JACK_SPDIF_IN   |
EXTCON_SPDIF_OUT        | EXTCON_JACK_SPDIF_OUT  |
--------------------------------------------------
EXTCON_HMDI             | EXTCON_DISP_HDMI       |
EXTCON_MHL              | EXTCON_DISP_MHL        |
EXTCON_DVI              | EXTCON_DISP_DVI        |
EXTCON_VGA              | EXTCON_DISP_VGA        |
--------------------------------------------------

And, when altering the name of USB charger connector, EXTCON refers to the
"Battery Charging v1.2 Spec and Adopters Agreement"[1] to use the standard
name of USB charging port as following. Following name of USB charging port
are already used in power_supply subsystem. We chan check it on patch[2].
- EXTCON_CHG_USB_SDP	/* Standard Downstream Port */
- EXTCON_CHG_USB_DCP	/* Dedicated Charging Port */
- EXTCON_CHG_USB_CDP	/* Charging Downstream Port */
- EXTCON_CHG_USB_ACA	/* Accessory Charger Adapter */

[1] www.usb.org/developers/docs/devclass_docs/BCv1.2_070312.zip
[2] commit 85efc8a18c ("power_supply: Add types for USB chargers")

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
[ckeepax: For the Arizona changes]
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
2015-10-16 08:30:09 +09:00
Chanwoo Choi e9844b2caf extcon: arizona: Reorder the default statement to remove unnecessary warning
This patch reorders the default statement to remove unnecessary warning message
when info->hpdet_ip_version is higher than 2.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
2015-09-30 19:11:47 +09:00
Richard Fitzgerald d8d09564b8 extcon: arizona: Add support for WM8998 and WM1814
This patch adds support for the WM8998 and WM1814 codecs.
These use the same IP version as WM5110 but have different
clamp control.

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-09-29 18:11:10 +09:00
Charles Keepax 6c20b93424 extcon: arizona: Don't disable debounce for inverted jacks
Whilst the jack is connected we disable the jack detection debounce to
ensure as quick as possible a detection of jack removal. However, it is
only safe to disable the jack debounce whilst the jack is connected if
using the micd clamp or the jack is not inverted. Otherwise spurious
interrupts might be generated when we re-enable the debounce.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-09-22 15:28:00 +09:00
Charles Keepax ff1cb0ed71 extcon: arizona: Use the micd_clamp for interrupts if it is available
Currently we only use the microphone clamp IRQ if GPIO5 is being used as
a second jack detection pin. But we should be using it on any system
where the clamp is available. This patch updates the driver to do so.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-09-22 15:28:00 +09:00
Nariman Poushin a0ef642849 extcon: arizona: Ignore jd_invert for MICD_CLAMP_STS
The polarity of MICD_CLAMP_STS does not change when different clamp
modes are used, this patch corrects this issue.

Signed-off-by: Nariman Poushin <nariman@opensource.wolfsonmicro.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-09-22 15:27:59 +09:00
Charles Keepax f719ae3311 extcon: arizona: Additional settings to improve accuracy of HP detect
If the TST_CAP_SEL bits aren't set correctly on wm5110/8280 there will
be a 100k load along side the headphones, which will affect the accurary
towards the very top of the detection range. This patch sets those bits.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-09-22 15:27:59 +09:00
Charles Keepax 6772a5ab4f extcon: arizona: Add support for general purpose switch
The switch is typically used in conjunction with the MICDET clamp in
order to suppress pops and clicks associated with jack insertion.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-09-22 15:27:58 +09:00
Charles Keepax df8b6771bd extcon: arizona: Add support for new ADC value mic detect
Newer devices give users the option to make the 3/4 pole jack
determination using a software comparison rather than a hardware one.
This patch adds support for this functionality.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-09-22 15:27:57 +09:00
Charles Keepax bb327e92a9 extcon: arizona: Simplify pdata symantics for micd_dbtime
Currently micd_dbtime can be set to 0 for default, 1 for 4 measurements,
or a greater than 16-bit value for 2 measurements. This patch simplifies
the symantics to 2 for 2 measurements, 4 for 4 measurements and any
other value for the default.

I am not super keen on changing the symantics of the pdata at this stage
in the drivers life, but acceptance of the DT binding for this field has
been made conditional on this happening.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-08-10 11:48:56 +09:00
Charles Keepax 57f70ef9bd extcon: arizona: Declare 3-pole jack if we detect open circuit on mic
Detecting an open-circuit on the microphone pin, usually means the
headset has a microphone but the cable is faulty. Currently the code
will simply stop detecting and declare nothing in this situation. It is
better to declare this as headphones such that the user can still use
their headset as plain headphones even if the microphone is faulty.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-08-10 11:48:56 +09:00
Charles Keepax 0ffe8cbd51 extcon: arizona: Ensure variables are set for headphone detection
The detecting flag really refers to the microphone detection stage and
as such should be cleared before arizona_identify_headphones is called.
Also the mic flag should be set before identify headphones is called as
well.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-08-10 11:48:56 +09:00
Charles Keepax 8e5838dd7b extcon: arizona: Use gpiod inteface to handle micd_pol_gpio gpio
Convert to using the newer gpiod interface for the micd_pol_gpio.
Although we still carry support for the old gpio interface from pdata.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
[cw00.choi: Modify the patch titlei to include the detailed content]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-08-10 11:48:55 +09:00
Charles Keepax 4778d44ff3 extcon: arizona: Add basic microphone detection DT/ACPI bindings
This patch adds bindings for the basic microphone detection platform
data.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-08-10 11:48:55 +09:00
Charles Keepax feffb0cc63 extcon: arizona: Update to use the new device properties API
The device properties API will load data from both device tree and ACPI,
update the binding to use this API instead of the OF API.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-08-10 11:48:55 +09:00
Chanwoo Choi 73b6ecdb93 extcon: Redefine the unique id of supported external connectors without 'enum extcon' type
This patch just redefine the unique id of supported external connectors without
'enum extcon' type. Because unique id would be used on devictree file(*.dts) to
indicate the specific external connectors like key number of input framework.
So, I have the plan to move this definitions to following header file which
includes the unique id of supported external connectors.
- include/dt-bindings/extcon/extcon.h

Fixes: 2a9de9c0f0 ("extcon: Use the unique id for external connector instead of string")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:01:42 -07:00
Chanwoo Choi 2a9de9c0f0 extcon: Use the unique id for external connector instead of string
This patch uses the unique id to identify the type of external connector instead
of string name. The string name have the many potential issues. So, this patch
defines the 'extcon' enumeration which includes all supported external connector
on EXTCON subsystem. If new external connector is necessary, the unique id of
new connector have to be added in 'extcon' enumeration. There are current
supported external connector in 'enum extcon' as following:

enum extcon {
	EXTCON_NONE		= 0x0,

	/* USB external connector */
	EXTCON_USB		= 0x1,
	EXTCON_USB_HOST		= 0x2,

	/* Charger external connector */
	EXTCON_TA		= 0x10,
	EXTCON_FAST_CHARGER	= 0x11,
	EXTCON_SLOW_CHARGER	= 0x12,
	EXTCON_CHARGE_DOWNSTREAM = 0x13,

	/* Audio and video external connector */
	EXTCON_LINE_IN		= 0x20,
	EXTCON_LINE_OUT		= 0x21,
	EXTCON_MICROPHONE	= 0x22,
	EXTCON_HEADPHONE	= 0x23,

	EXTCON_HDMI		= 0x30,
	EXTCON_MHL		= 0x31,
	EXTCON_DVI		= 0x32,
	EXTCON_VGA		= 0x33,
	EXTCON_SPDIF_IN		= 0x34,
	EXTCON_SPDIF_OUT	= 0x35,
	EXTCON_VIDEO_IN		= 0x36,
	EXTCON_VIDEO_OUT	= 0x37,

	/* Miscellaneous external connector */
	EXTCON_DOCK		= 0x50,
	EXTCON_JIG		= 0x51,
	EXTCON_MECHANICAL	= 0x52,

	EXTCON_END,
};

For example in extcon-arizona.c:
To use unique id removes the potential issue about handling
the inconsistent name of external connector with string.
- Previously, use the string to register the type of arizona jack connector
static const char *arizona_cable[] = {
	"Mechanical",
	"Microphone",
	"Headphone",
	"Line-out",
};
- Newly, use the unique id to register the type of arizona jack connector
static const enum extcon arizona_cable[] = {
	EXTCON_MECHANICAL,
	EXTCON_MICROPHONE,
	EXTCON_HEADPHONE,
	EXTCON_LINE_OUT,

	EXTCON_NONE,
};

And this patch modify the prototype of extcon_{get|set}_cable_state_() which
uses the 'enum extcon id' instead of 'cable_index'. Because although one more
extcon drivers support USB cable, each extcon driver might has the differnt
'cable_index' for USB cable. All extcon drivers can use the unique id number
for same external connector with modified extcon_{get|set}_cable_state_().

- Previously, use 'cable_index' on these functions:
extcon_get_cable_state_(struct extcon_dev*, int cable_index)
extcon_set_cable_state_(struct extcon_dev*, int cable_index, bool state)

-Newly, use 'enum extcon id' on these functions:
extcon_get_cable_state_(struct extcon_dev*, enum extcon id)
extcon_set_cable_state_(struct extcon_dev*, enum extcon id, bool state)

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
[arnd: Report the build break about drivers/usb/phy/phy-tahvo.c after using the
unique id for external connector insteadf of string]
Reported-by: Arnd Bergmann <arnd@arndb.de>
[dan.carpenter: Report the build warning of extcon_{set|get}_cable_state_()]
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
2015-05-22 18:58:44 +09:00
Inha Song 9e86b2ad4c extcon: arizona: Add support for select accessory detect mode when headphone detection
This patch add support for select accessory detect mode to HPDETL or HPDETR.
Arizona provides a headphone detection circuit on the HPDETL and HPDETR pins
to measure the impedance of an external load connected to the headphone.

Depending on board design, headphone detect pins can change to HPDETR or HPDETL.

Signed-off-by: Inha Song <ideal.song@samsung.com>
Acked-by: Lee Jones <lee@kernel.org>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-05-19 16:39:05 +09:00
Charles Keepax 2b51f9c2f1 extcon: arizona: Apply HP clamps correctly for WM8280
The headphone clamping is not set correctly currently, this was missed
because the wm8280 patches and the patch fixing the clamping for wm5110
went upstream at very similar times. This patch sets the headphone
clamping correctly for wm8280.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-05-19 16:39:05 +09:00
Chanwoo Choi a71fbc1525 extcon: arizona: Remove the setting of device name
This patch removes the setting of device name. Instead, extcon_dev_register()
set the device name such as 'extcon[number]' naming method.
- /sys/class/extcon/Headset Jack -> /sys/class/extcon/extcon[number]

Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
2015-05-19 16:39:05 +09:00
Richard Fitzgerald d0fd5fbc09 extcon: arizona: Rename hpdet_ip to make its purpose clearer
Renamed to hpdet_ip_version to make it clearer what it does
and that the value in it is simply a version number.

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-05-19 16:39:03 +09:00
Linus Torvalds 1fc149933f Char/Misc driver patches for 4.1-rc1
Here's the big char/misc driver patchset for 4.1-rc1.
 
 Lots of different driver subsystem updates here, nothing major, full
 details are in the shortlog below.
 
 All of this has been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here's the big char/misc driver patchset for 4.1-rc1.

  Lots of different driver subsystem updates here, nothing major, full
  details are in the shortlog.

  All of this has been in linux-next for a while"

* tag 'char-misc-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (133 commits)
  mei: trace: remove unused TRACE_SYSTEM_STRING
  DTS: ARM: OMAP3-N900: Add lis3lv02d support
  Documentation: DT: lis302: update wakeup binding
  lis3lv02d: DT: add wakeup unit 2 and wakeup threshold
  lis3lv02d: DT: use s32 to support negative values
  Drivers: hv: hv_balloon: correctly handle num_pages>INT_MAX case
  Drivers: hv: hv_balloon: correctly handle val.freeram<num_pages case
  mei: replace check for connection instead of transitioning
  mei: use mei_cl_is_connected consistently
  mei: fix mei_poll operation
  hv_vmbus: Add gradually increased delay for retries in vmbus_post_msg()
  Drivers: hv: hv_balloon: survive ballooning request with num_pages=0
  Drivers: hv: hv_balloon: eliminate jumps in piecewiese linear floor function
  Drivers: hv: hv_balloon: do not online pages in offline blocks
  hv: remove the per-channel workqueue
  hv: don't schedule new works in vmbus_onoffer()/vmbus_onoffer_rescind()
  hv: run non-blocking message handlers in the dispatch tasklet
  coresight: moving to new "hwtracing" directory
  coresight-tmc: Adding a status interface to sysfs
  coresight: remove the unnecessary configuration coresight-default-sink
  ...
2015-04-21 09:42:58 -07:00
Charles Keepax 43f0acd961 extcon: arizona: Fix headphone clamping on wm5110
wm5110 requires slightly different configuration of the headphone
clamps to other Arizona devices. Otherwise headphone detection accuracy
will be way off. This patch adds the needed clamping.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-03-04 09:42:24 +09:00
Charles Keepax 112bdfaa52 extcon: arizona: Deobfuscate arizona_extcon_do_magic
arizona_extcon_do_magic does not lend a lot of clarity to the purpose
of the function, and as all the registers used are described in the
datasheet there is no need to obfuscate the code. This patch renames the
function to arizona_extcon_hp_clamp, as it controls clamping on the
headphone output.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2015-03-04 09:41:48 +09:00
Richard Fitzgerald 2f2b6aa8c5 extcon: arizona: Add support for WM8280/WM8281
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-02-26 10:04:44 +00:00
Wolfram Sang 08147bb19a extcon: drop owner assignment from platform_drivers
A platform_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-20 16:20:30 +02:00
Charles Keepax 17271f608b extcon: arizona: Get MICVDD against extcon device
Previously we would do a regulator get against the main Arizona device
to obtain the MICVDD regulator. Arizona is an MFD device and normally
MICVDD will be supplied by one of its children (the arizona-micsupp
regulator). As devres destruction for the MFD device will run after all
its children have been destroyed, the regulator will be destroyed before
devres calls regulator_put. This causes a warning from both the
destruction of the child node, as the regulator is still open, and from
the put of the regulator as the regulator device has already been
destroyed.

A simple fix here is to get the regulator against the extcon device
itself such that devres runs when the child is destroyed. This has the
additional benefit that if for some reason the extcon driver is unloaded
the regulator reference won't hang around until the MFD is unloaded.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2014-07-23 10:07:42 +09:00
Jingoo Han 0a16ee633a extcon: Remove unnecessary OOM messages
The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message. The following
checkpatch warning is also removed.

  WARNING: Possible unnecessary 'out of memory' message

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
[Acked by Charles Keepax for arizona part]
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2014-07-23 10:07:09 +09:00
Chanwoo Choi ac65a625a0 extcon: Set parent device of extcon device using prameter of devm_extcon_dev_allocate
This patch set the parent device of extcon device using first parameter of
devm_extco_dev_allocate() to remove duplicate code on all of extcon provider
drivers.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reported-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Tested-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Graeme Gregory <gg@slimlogic.co.uk>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2014-06-16 13:33:19 +09:00
Charles Keepax 24a279b1ca extcon: arizona: Update manual headphone detection calculation
The higher levels of impedance have a higher minimum value than the
first level. As the same value was used for all levels, higher impedances
were reported with a very low level of accuracy. This patch applies the
approriate lower threshold for each level, whilst we are changing things
add a define for the maximum value at each level to improve readability.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2014-06-16 13:33:19 +09:00
Charles Keepax e368f52521 extcon: arizona: Correct typo to disable regulation for button detection
We can use the bypass mode on the MICVDD reg for button detection, as
the comment in the code states, however the code was mistakenly
disabling bypass. This patch corrects this and allows bypass mode during
button detection.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2014-06-16 13:33:19 +09:00
Nikesh Oswal 34602486d0 extcon: arizona: Use extcon cable API with index of extcon cable instead of string
Use extcon cable API instead of state API as it is much more
idiomatic.

Signed-off-by: Nikesh Oswal <Nikesh.Oswal@wolfsonmicro.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
[Modify patch title by Chanwoo Choi]
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2014-06-16 13:33:19 +09:00
Charles Keepax 5a8844b596 extcon: arizona: Remove duplicate set of input parent device
devm_input_allocate_device already sets the parent device to be that
passed to it, we also set this manually in arizona_extcon_probe. This
patch removes the redundant set from arizona_extcon_probe.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2014-06-16 13:33:19 +09:00
Richard Fitzgerald a288d64871 extcon: arizona: support inverted jack detect switch
Add config option for inverted jack detect switch that
opens when jack is inserted.

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
[Acked by Lee Jones for MFD part]
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2014-06-16 13:33:18 +09:00
Chanwoo Choi ef70a214b5 extcon: arizona: Use devm_extcon_dev_allocate for extcon_dev
This patch use devm_extcon_dev_allocate() to simplify the memory control
of extcon device.

Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: patches@opensource.wolfsonmicro.com
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
2014-04-29 09:50:55 +09:00
Sangjung Woo d88cc36704 extcon: arizona: Use devm_extcon_dev_register()
Use the resource-managed extcon device register function (i.e.
devm_extcon_dev_register()) instead of extcon_dev_register(). If extcon device
is attached with this function, that extcon device is automatically unregistered
on driver detach. That reduces tiresome managing code.

Signed-off-by: Sangjung Woo <sangjung.woo@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
2014-04-24 19:37:06 +09:00